Carbureter.



E. M. STEVENSON.

OARBURETBR.

APPLICATION FILED AUG. 26, 1907.

Patented Jan. 159; 1909.

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WITNESSES.

EDGAR lvi. STEVENSGN, Or INI'SMNAPDLIS No. oi ecc.

Application. filed August 223, 1307. Serial No State oi Indians, have invented it certain new and useful Carburetor; and i do hereby declare that the following is it fell, clear, and i exact description thereof, reference to the accompanying drawings, in which like letters refer to like parts.

The object of this invention is to improve the construction of carburetors by single mesns for operating the oirinlct valve, the fuel valve and the ges outlet valve simul 'tencousl v and also dill'erentiolly so that as said 'velves are operated some will move more rapidly than others so that some of the orts closed by said valves will increase or .iminish at e greetcr or loss ratio than other orts closed by said valves. l

The invention involvesslso the idea of adjnstirig the connections between the valves of said actuating means upon time according threaded for connection -conveying gosolene or other nor to and the actuating means whereby the effect said valves; es respects their movements in relation to each other, may be varied readily fromtime to to the demands of the work (Q be done.

The full nature of the invention will be understood from the accompanying drawing and the. following description and claim.

in the drawings 'Ei are l is e single verticelsection through t io carburetor. Fig. 2' is e side elevation thereof. Fig. 3 is a. section on'the line 3 3 of Fig. 1, an altered position oi the throttle lever and two of the valves being indicated by dotted lines In detail the carburetor consists chiefly oi the fuel or gesolene receiving receptacle l0 and the mixing chamber 11. s herein shown both of these members ere tubular cnd'oncngcd parallel with each other and integral with each other. At the bottom of the receptacle there is a nipple l2 with means for the rec'e tccle 10, the passageway therethrough being controlled by a valve 13 on the'stcm is carrying the'ilost 15. The receptacle i0 is closed by a lid 16. From the receptacle 10 e fuel conduit l7 extends into the tubular mixing chamber 11 to a point about midway and lies at flaring outlet that furnishes svelve seat for the needle valve 20, which screws through one side of the chamber 11 for regulating the fuel pa "cnin' 17 v 5. air enters the lower end ct being had.

Sp ecificetion oi Letters Est-one.

thus termed passes outlet valve and goes into the c engine, there being a connection, not KJWII, between the cylinder of the engine threaded end the chamber end the upper 11. The valves and are disks l1 ling substantially the some diameter es the chsmberll end-mounted on stems 2? and 28 that extend diametrically through the charmer 11 and have bearing in the Wells thereof so that they inevbe pertislly rotc cd tor turning the valves to a closing position diametrically across the chamber 11 or to various-open positions, the openings on each side of each valve incressin es the valve is turned from the diametrice. osition.

The valves are actuated our controlled by the following means: A throttle lever 30 is secured on the valve stem 20 of the-gas volve 26 and is provided with e slot 31 through which the pin 32 is secured in the end or s connecting bar of the chamber l1 outside thereof and then longitudinally of said chamber, and is pivotslly connected at Svrith a. crank 35, secured. on the shaft-Z27 of the so valve. There is likewise e crank 38 secured on the fuel valve 20 end it has a slot 39 through which a pin 40 extends, said-pin being secured to the end of the connecting bar 41, which is pivoted et 42 to the crank and between the ends of said ore-11k,

The throttle lever 30 end the cranks 35 end 38 are arranged substantially parallel with each other and the slots 81 end 39 are substentislly parallel with each other and with said cranks, whereby the ends of the connecting bers 33 and 41 may be adjusted towards or away from the fulcrum of the cranks in which they are mounted. lt is obvious that when thecnd of tho/connecting bar 33 adjusted closer to throttle lever 30 th opening movement of the gas valve 2'3 will be relatively more rapid than the opening movement of the sir valve 25 an d the fuel valve 20. Likewise when the connecting bar 41 is adjusted more closely to 33 that extends transversely f the fulcrum of the thorefore, although it is a, single justably mounted connecting bar between ously operated with varying rapidity of openthe crank of the air inlet valve and the throting or closinginovements, and capable of relative adjustment. tle lever substantially as set forth. v

I claim: In .witness whereof, I have hereunto al- A carbureter including an air inlet valve, 9, l fixed my signature in the presence of the Witgas outlethvahimla'n intermediate iuell1 inlet l nesses herein named. valve, a t rott e ever for o eratingt e as l' 1 s outlet valve, cranks for op rating said ilir EDGAR 81 Evhbsox and fuel inlet valves, an adjustably mounted j Witnesses: connecting bar between the cranks of the air 4 V. H. LocKWooD,

OLIVE BREEDEN.

inlet and the fuel inlet valves, and an ad- 

